linux-kernel - [PATCH] sparc: don't reference obsolete termio struct for TC* constants

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Message-ID: <e11ecaf723594bf01c66fc5c80c25bda0621f34f.1759359616.git.sam@gentoo.org>
Date: Thu,  2 Oct 2025 00:00:33 +0100
From: Sam James <sam@...too.org>
To: "David S. Miller" <davem@...emloft.net>,
	Andreas Larsson <andreas@...sler.com>
Cc: Sam James <sam@...too.org>,
	Stian Halseth <stian@....no>,
	sparclinux@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] sparc: don't reference obsolete termio struct for TC* constants

Similar in nature to ab107276607af90b13a5994997e19b7b9731e251. glibc-2.42
drops the legacy termio struct, but the ioctls.h header still defines some
TC* constants in terms of termio (via sizeof). Hardcode the values instead.

This fixes building Python for example, which falls over like:
  ./Modules/termios.c:1119:16: error: invalid application of 'sizeof' to incomplete type 'struct termio'

Link: https://bugs.gentoo.org/961769
Link: https://bugs.gentoo.org/962600
Co-authored-by: Stian Halseth <stian@....no>
Signed-off-by: Sam James <sam@...too.org>
---
v3: Fix constants.
v2: Fix title.

 arch/sparc/include/uapi/asm/ioctls.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 7fd2f5873c9e7..f26befbf690fb 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -5,10 +5,10 @@
 #include <asm/ioctl.h>
 
 /* Big T */
-#define TCGETA		_IOR('T', 1, struct termio)
-#define TCSETA		_IOW('T', 2, struct termio)
-#define TCSETAW		_IOW('T', 3, struct termio)
-#define TCSETAF		_IOW('T', 4, struct termio)
+#define TCGETA          0x40125401
+#define TCSETA          0x80125402
+#define TCSETAW         0x80125403
+#define TCSETAF         0x80125404
 #define TCSBRK		_IO('T', 5)
 #define TCXONC		_IO('T', 6)
 #define TCFLSH		_IO('T', 7)
-- 
2.51.0